| Monroe to River Ridge (Louisiana) | 208.09 mi (334.88 km) |
| Monroe to Riverbank (California) | 1,663.48 mi (2,677.11 km) |
| Monroe to Riverdale (Georgia) | 449.80 mi (723.88 km) |
| Monroe to Riverdale (Illinois) | 676.10 mi (1,088.08 km) |
| Monroe to Riverside (California) | 1,462.84 mi (2,354.21 km) |
| Monroe to Riverside (Ohio) | 669.45 mi (1,077.38 km) |
| Monroe to Riverton (Utah) | 1,230.94 mi (1,981.00 km) |
| Monroe to Riverton (Wyoming) | 1,147.30 mi (1,846.40 km) |
| Monroe to Riverview (Florida) | 667.54 mi (1,074.30 km) |
| Monroe to Riverview (Michigan) | 825.38 mi (1,328.32 km) |
| Monroe to Riviera Beach (Florida) | 821.77 mi (1,322.51 km) |
| Monroe to Riviera Beach (Maryland) | 982.69 mi (1,581.48 km) |
| Monroe to Roanoke (Virginia) | 760.65 mi (1,224.14 km) |
| Monroe to Roanoke Rapids (North Carolina) | 864.35 mi (1,391.04 km) |
| Monroe to Robbinsdale (Minnesota) | 866.80 mi (1,394.99 km) |
